What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): One major variety is the 1808/7 Capped Bust Half Dollar Overdate Error. This variety features an 1808 date struck over an 1807 date which resulted in parts of the underlying "7" being seen within and around the last "8" in the date. These features are depicted by the arrows in the example image above.
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition